No problem, we've got 1899 and 9979 to multiply
1899 × 9979 = 9979 × (1899)
+ 9979 × 9 giving us 89811
+ 9979 × 90 that results in 898110
+ 9979 × 800 what gives us 7983200
+ 9979 × 1000 what gives us 9979000

= 18950121
